Effect of Interaction between Diffusion Fluxes on Evaporation or Condensation of Binary Solution Drop under Forced Convection

Abstract

In order to investigate the effect of interaction between diffusion fluxes on mass transfer from a binary solution drop, numerical analyses of mass transfer around a binary solution drop under forced convection are made by using a finite difference method for driving force ratios Δω_B/Δω_A = –10 – 10, diagonal Schmidt number Sc_AA = 1–3, Sc_BB = 0.5–3, nondiagonal Schmidt number Sc_AB = 1–10, Sc_BA = 1–10 and Reynolds number Re_P =1–200.
The effect of driving force ratios, Reynolds numbers, and multicomponent Schmidt numbers on the concentration profiles and the diffusion fluxes of a binary solution drop are discussed. A new correlation is proposed for the effect of interaction between diffusion fluxes on mass transfer around a binary solution drop under forced convection.